An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is σ = 1.69E-7 C/m2, and the plates are separated by a distance of 1.72E-2 m. How fast is the electron moving just before it reaches the positive plate? i started by using the equation E=σ/ϵ. so i got E=1.9096E4N/C. then i multiplied that by one coulomb to get force. so F=3.05536E-15N. i then took newtons seconds law (F=ma) and found acceleration. for the mass of the electron i used 9.109E-31kg. so i was left with a=3.35E15m/s^2. i need to find out velocity, and so i looked for kinematic equations and i cant find one with all the variables that i have. it seems like everyone i try to use is missing 2 variables. am i overlooking something? please point me in the right direction. thanks!